<network axes-xy = "ne" angles="right-handed">
<description>
Sample 1D vertical least square adjustment
Differential levels measured forward and reverse for each leg
One known elevation for point 1a
</description>
<parameters
sigma-apr = "5.000"
conf-pr = "0.950"
tol-abs = "200.000"
sigma-act = "apriori"
/>
<points-observations distance-stdev="0.00 0.00 1.00">
<point id="2" adj="z" />
<point id="3" adj="z" />
<point id="4" adj="z" />
<point id="1a" z="1000.00000" fix="z" />
<height-differences>
<dh from="1a" to="4" val="-1.22500" stdev="5.00" />
<dh from="4" to="3" val="-0.84800" stdev="5.00" />
<dh from="3" to="2" val="1.34200" stdev="5.00" />
<dh from="2" to="1a" val="0.72000" stdev="5.00" />
<dh from="1a" to="2" val="-0.72400" stdev="5.00" />
<dh from="2" to="3" val="-1.33500" stdev="5.00" />
<dh from="3" to="4" val="0.84200" stdev="5.00" />
<dh from="4" to="1a" val="1.23100" stdev="5.00" />
</height-differences>
</points-observations>
</network>
</gama-xml>